Incandescent lamp with a carbon cycle and a halogen cycle
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United States of America Patent
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Jul 22, 2008
Grant Date -
May 18, 2006
app pub date -
Nov 19, 2004
filing date -
Dec 1, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The incandescent lamp, which uses a carbon cycle process, is equipped with a luminous body which, together with a fill, is introduced in a vacuum-tight manner into a bulb, the luminous body including a metal carbide, the melting point of which is above that of tungsten. The distance between the luminous body and the wall of the bulb is less than 18 mm, with a first cycle process, which is attributed to the carbon, being effected by the use of carbon and hydrogen as fill additive, and a second cycle process, which is attributed to the metal, being effected by the use of halogen.
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